Installing it manually using Cargo

Prerequisites

A Rust installation is required for this step. Installation instructions can be found here: rustup.rs

Install the package using Cargo:

git clone https://github.com/keybear/keybear.git
cd keybear
cargo install

Install Tor:

sudo apt install tor

Configure a hidden Tor onion service, add the following lines to /etc/tor/torrc:

HiddenServiceDir /var/lib/tor/keybear
HiddenServicePort 5219 127.0.0.1:52477

printf "HiddenServiceDir /var/lib/tor/keybear\nHiddenServicePort 5219 127.0.0.1:52477" | sudo tee -a /etc/tor/torrc

Restart Tor:

sudo systemctl restart tor.service

Copy the service file to /usr/lib/systemd/system:

sudo cp keybear.service /usr/lib/systemd/system/

Tell systemd to look for the new service file, to start it everytime we boot and to start it now:

sudo systemctl daemon-reload
sudo systemctl enable keybear.service
sudo systemctl start keybear.service

Verify that the service is running:

sudo systemctl status keybear.service